Chromatophore Fermall by Mayu Tsutsumi - Bizoux

Chromatophore Fermall by Mayu Tsutsumi - Bizoux is a highly esteemed winner of the very prestigious 2026 A' Design Award d'Argent in Disseny de Joieria Competition Category.

ArgentJoieria· 2026

Chromatophore Fermall

by Mayu Tsutsumi - Bizoux

Client: Bizoux

A' Design Award d'Argent Winner in Joieria Category

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Verified Award Winner

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Colors

The Design

About Chromatophore Fermall

Chromatophore harmonitza la bellesa espontània de les gemmes naturals amb una artesania precisa. Elaborat en or groc de 18K, presenta 392 pedres muntades en pavé, incloent-hi la rara Alexandrita i el Granat Blau de Bekily, algunes tan petites com 1,0 mm. Cada muntura dissenyada amb CAD va ser fixada per artesans amb un control exacte. El rodi negre minimitza la presència del metall, realçant-ne la brillantor, mentre que un tancament articulat i dues agulles garanteixen comoditat i estabilitat.

The Recognition

About the A' Design Award d'Argent

Chromatophore Fermall és un guanyador del guardó A' Design Award d'Argent, un reconeixement extraordinàriament prestigiós concedit a dissenys d'alta gamma, esplèndids i impressionants. Els guanyadors d'Argent són obres tremendament brillants i summament creatives que il·lustren la perícia, el talent i la perspicàcia excepcionals dels seus dissenyadors. Es preveu que Chromatophore Fermall sigui una obra meravellosa i de gran lluïment, remarcablement professional i profundament innovadora. Aquest disseny guanyador del guardó A' Design Award d'Argent és un invent molt notable i admirat que beneficia i fa avançar els límits de l'art, la ciència, el disseny i la tecnologia. Chromatophore Fermall és una creació molt envejada que evoca desitjos, introdueix sentiments positius i desperta sorpresa i admiració.

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: For Bizoux, color-change gemstones - those rare jewels that reveal two distinct hues - stand as the very emblem of our brand. We believe that these gems symbolize the celebration and expression of diversity, a value at the heart of our creations.

Thanks to our unparalleled sourcing capabilities, we have secured some of the world’s most exceptional color-change stones and transformed them into extraordinary jewelry.
At the pinnacle of this pursuit lies our high jewelry masterpiece: Chromatophore.
Dimensions & Packaging: Dimensions approx. 51.13 mm (H) x 41.70 mm (W) x 14.42 mm (D)
Tags: Brooch, Fine Jewelry, Alexandrite, Bekily Blue Garnet, Sapphire, Emerald, Solid Gold, Chameleon, Color Change
Production Technology: Forged in 18K yellow gold for strength and radiance, this piece holds 392 hand-selected gemstones in flawless pave. Stones as small as 1.0 mm are individually designed in 3D and set by a single artisan with precise care. Black rhodium plating minimizes metal, dissolving boundaries so only brilliance remains. Chromatophore transforms rare gems into a constellation where light itself becomes emotion.
Design Challenge: The pave setting, covering the entire form, required strict technical discipline. The chameleon’s organic contours demanded advanced 3D CAD, refined in 0.1 mm increments with prongs recalculated for structural optimization. Master setters then adjusted each seat, using stones of varied diameters to achieve organic irregularity. Every micro-adjustment - shaving, repositioning, fine-tuning - ensured a flawless surface, uniting measurable control with refined craftsmanship.
Research: The creation began with a study of the chameleon’s form, its expressions refined through sketches into a vision of high jewelry. Gemstones of varied sizes cover the surface, echoing the textures of its skin. Even the reverse, unseen in wear, bears forest-leaf motifs of its habitat. Each stone is set with precision, uniting nature’s mysterious elegance with the mastery of human craftsmanship.
Inspiration: The immeasurable beauty of natural gemstones, combined with the calculated precision of craftsmanship, defines our jewelry aesthetics. Born from this duality, Chromatophore takes its name from the chameleon’s pigment cells, showcasing color-change gems set with advanced micro pave techniques. Using exceptional materials - alexandrite, bekily blue garnet, and more - we refined complexity and precision to shape an organic, three-dimensional form that embodies the chameleon’s natural dynamism.
Project Duration: The creation of Chromatophore began in October 2022 at our Tokyo-Nihonbashi office. The initial design sketches and highly detailed technical drawings were conceived at the BIZOUX atelier, before being brought to life in the renowned jewelry workshops of Kofu, Yamanashi-Japan’s historic center of fine jewelry craftsmanship. The piece was completed in June 2023 and has since been exhibited at GINZA SIX, one of Tokyo’s most prestigious commercial landmarks.
Operation Flow: The clasp mechanism on the reverse side is precision-engineered for effortless opening and closing, allowing seamless wear. The brooch is structurally optimized with two pins, carefully positioned to ensure maximum stability. Each component is crafted with meticulous attention, providing a secure, stress-free, and technically flawless fit.
Patents: IMAGE CREDITS: DREAM FIELDS INC
Team Members: Designer: Mayu Tsutsumi
Photographer: Yasuhiro Matsumura
Image Credits: DREAM FIELDS INC